Door-lock.



W. D. LUTZ.

DOOR LOCK.

APPLICATION FILED JULY 3!, ma.

Patented Dec. 4, 191?,

3 SHEETSSHEET I.

l/Vl/ENTOR w/r/msss;

W. D. LUTZ.

DOOR LOCK.

APPLICATION FILED JULY 31.1913.

' Patented Dec. 4, 1917.

3 SHEETS-SHEET 2 WIT lI/ESSES:

W. D. LUTZ.

DOOR LOCK.

APPLICATION FILED JULY 31,1913.

Patented Dec. 4, 1917.

3 SHEETS-SHEET 3\ WITNESSES WILLIAM 1D. LUTZ, 0F ALLENEDALE, JERSEY,ASSTGNOF, T0 OTIS ELEVATOR COM- FATTY, OF JERSEY CITY, NEW JERSEY, ACORPORATION 015 NEW JERSEY.

DOOR-LOCK.

Specification of Letters Patent.

Patented Dec". AL, 151W.

Application filed .1 uly 31, 1916. Serial 1110. 152,163.

- ticularly to the hatchway doors of an autolnatic electric elevator.

One of the objects of the invention is to provide a cheap and durablelock, simple 1n construction, wherein the parts are interchangeable tofulfil the necessities requisite to adapt the lock to the variousstructural conditions met with in different installations, such assliding or hinged doors, sliding or swinging either to the right or tothe left.

Further objects of the present invention will appear hereinafter, thenovel combi nations of elements being pointed out in the appendedclaims.

In the accompanying drawings, Figural shows a sectional elevational viewof my invention,-with the parts therein arranged for the applicationthereof to a swinging door; Fig. 2 shows my invention, partly insection, as-arranged for a sliding door; Fig. 3 shows, in section, afront elevational view of Fig. 2; Fig. 4: shows an application of myinvention to an elevator door, together with the'car and means carriedthereon for operating the door locks; Fig. 5 shows an enlarged plan viewof a cam associated with the door lock mechanism Fig. 6 shows an endview of Fig. 5 Fig. 7 1s an enlarged general arrangement of a latch.mechanism and contacts associated therewith; Fig.

8 is a detail view of a bearing stud.

In Fig. 1, the locking mechanism is located within a casing A,comprising a body 1, provided, with coverplates 2 and 3, secured theretoby screws 1. One of the cover plates is removed to show the mechanismwithin the casing. The casing is secured to the jarnb of the door in theusual way by means of screws 5. A latch 6 is positioned between lugs 7and 7 formed in thelcasin and in this instance is pivotally support by abearing stud (see Fig. 6), having at one end a screw threaded portion 9,which screws into an opening 12 in the boss 7; the other end of the stud8 extends into a bushing stud 11, which screws into an openmg 12 1n thelug in alinement with the openm 12.

unders de of the latch 6 by a pin 15, and

supports a roller 14. The casing is proed with an opening 17 screwthreaded to receive a threaded end 18' of a sleeve 19, WlllCll may behexagonal a shown or any suitable shape. Extended through the sleeve isa rock shaft 20, whose inner end 21 is supported in a bracket 22integral with the body of the casing. A collar 23 provided with camfaces 25 and 26 thereon,is fixed in this instance, to the rock shaft bya removable taper pin 24. The cam faces (see Fig. 5) co-act with theroller 11, and when the collar i rotated in one direction or the other,the cam face applies a pressure to the roller which efi'ects an upwardmovement of the latch, against the action of a spring 27, positioned on.a spindle 28. The spindle 1s provided with a spear shaped head to seatitself during the movements of the A stud 13 is secured to the latch.One end of the spring bear against a head 31 on the spear, and theother-end a ainst a web 32, in a spindle guide 33. T e latter is securedto the casing by screws 34:, and the web 32 therein has an openin 35,through which the spindle. 28 exten s and is guided thereby.

A' catch 36 is secured to a' door 37 by means of screws 38, and isprovided with -is operated by the rock shaft through the medlumofthecam, and although ll show and describe specific arrangements of the lockmechanism with a hinged and sliding door, it is to be understood thateither an rangement of the lock mechanism can be used with either asliding or hinged door.

The changes required to adapt the mechanism for a sliding door 65 are asfollows: The taper pin 24 is first removed to allow removal of the rockshaft 20, together with the sleeve 19, which is unscrewed from theopening 17. The bearing stud is next unscrewed from the opening 12 andscrewed into the opening 17 to support the collar 23, which in thisinstance. has no operable function whatsoever other than to seat theroller 14 when the latch is in its locking position, as shown in Fig. 2.The sleeve 19 is now screwed into the opening 12' and the rock shaft.inserted therein, pivotally to support the latch 6, which is securedthereto by the taper pin 24, which is driven home through an opening 6'provided therefor in the latch and rock shaft 20. The rock shaft extendsthrough the latch and into the bushingstud 11. The sleeve, together withthe rock shaft, can be inserted at the point shown or through theopening 12 as shown in dotted lines in Fig. 2, in which case the pin isdriven through an'opening 6" on the other side of the latch. In thelatter case, the bushing stud is removed and the sleeve, together withthe rock shaft, inserted therein and the said bushing stud inserted inthe opening 12'. The door catch is in this in stance carried by abracket 63 secured by means of screws 64 to the sliding door 65. The.lock casing is attached to a plate 66, secured to the door jamb. In theposition shown in Fig. 2, the door 65 is fully closed and locked by thelatch 6, andwhen the lever 59 is rocked by the cam 61 on the car,

the latch 6 being rotatable with the rock shaft, in this instance, isthereby rocked directly by the said shaft to open position, as shown indotted lines in Fig. 2. The lock may readily be adapted for a doorsliding to the right, instead of to the left as shown in Fig. 2, byturning the casing 180 and securing the same to the door j amb oppositeto the one shown in Fig. 2, and in this instance the rock shaft andsleeve are removed from the opening 12 and inserted in the opening 12 onthe opposite side of the casing as is shown in dotted lines in Fig. 2.The openings 55 provide ample means for conveniently leading the -saidconductors into the casing, under all structural conditions met with onthe installations heretofore mentioned. 4

In Fig. 4 I have illustrated in dotted lines the elevator car 62, whichis suspended by one or more cables 66 and connected thereby to anysuitable hoisting apparatus. A cam magnet 67 mounted preferably on thetop of the car is connected by a cable or rod 69 to the cam 61, which isin turn connected to the support, 69, by means of links 70 and 71.

From the foregoing, it will be seen, that in a lock containing anembodiment of my invention, the various parts are so arranged andconstructed that they may readily be interchanged to suit everycondition that may arise in actual practlce. For this reason, 'it isnecessary to carry only one type of lock in stock, whereas heretofore ithas been customary for a manufacturing concern to carry in stock amiscellaneous assortment of locks each one different from the other andbut one of them adapted to suit a particular installation. In thismanner I am able greatly to cheapen the cost of manufacture, and also toprevent the annoyance and delay which frequently arise by reason of theordering of a wrong type of door lock.

Obviously various changes in the details of construction and arrangementof parts might be made by those skilled in the art, without departingfrom the spirit and scope of my invention, and I desire therefore not tobe limited to the exact construction disclosed.

What I claim as new and desire to protect by Letters Patent of theUnited States 1s:-

1. The combination of a lock casing, a latch in said casing, a springpressed spindle having a spear shaped head and adapted to move saldlatch to closed position, a groove in said latch adapted to seat saidspindle, and a member for guiding said spindle.

2. The combination of a lock casing, a pivoted'latch in said casing, abearing stud extending through said casing pivotally to support saidlatch, a roller associated with said latch, a catch, a rock shaftpivotally supported in said lock casing, cams fixed thereon, and aremovable member for fixing the cams on the rock shaft, and co-actingwith said roller upon either direction of rotation of said rock shaft,to rotate said latch out of locking engagement with said catch.

3. The combination of a lock casing, a pivoted latch in said casinghaving a roller associated therewith, a catch, a rock shaft, camsrotatable therewith and co-acting with said roller, operable to rotatesaid latch out of engagement with said catch, and a spring pressedguided spindle tending to move said latch to its locking position.

4. The combination of a lock casing, a pivoted latch in said casing, acatch for engaging said latch, a rock shaft disposed in the plane ofmovement of the latch, and cams co-acting with said latch, operable uponeither direction of rotation of said rock shaft, to effect a movement ofsaid latch out of locking engagement with said catch.

5. The combination of a lock casing, a

pivoted latch in said casing, a catch for engaging said latch, a rockshaft arranged in the plane of movement of said latch and pivotallysupported in said casing, and means rotatable therewith co-acting withsaid latch to rotate said latch out of engagement with said catch.

6. The combination of a lock casing, a

fanat c collar having cam faces formed thereon which co-act with saidroller to edect a movement of said latch to its unlocking position, anda spring pressed member associated with said latch, tending to move thesame to its locking position.

7. The combination of a lock casing, a pivoted latch in said casinghaving a roller associated therewith, a rock shaft, cam membersrotatable therewith and co-acting with said roller to efiect a movementof said latch to its unlocking position, and a yielding memberassociated with said latch tending to move the same to its lockingposition.

8. The combination of a lock casing, a pivoted latch in said casing, aroller carried thereby, a rock shaft, a collar rotatable lockingposition.

10. The combination of a lock casing, a pivoted latch in said casing, arock shaft pivotally supported in said casing, and means carried by saidrock shaft and latch co-acting in a manner to efl'ect a movement of saidlatch to its unlocking position when Y said rock shaft is rotated.

11. The combination of a lock casing, a pivoted latch in said casinghaving a roller associated therewith, a rock shaft, and a memberrotatable therewith and co-acting with said roller, to efiect a movementof said latch to its unlocking position, and a yielding memberassociated with said" latch tending to move the same to its lockingposition.

12. The combination of a lock casing, a

pivoted latch having a roller associatedtherewith, a rock shaft, andmeans carried thereby co-acting with said roller to effeet a movement ofsaid latch to its unlocked position,

13. The combination of a lock casing, a pivoted latch in said casing, amember associated with said casing and extending therethrough pivotallyto support said latch, a. rock shaft pivotally supported in said casing,a connection between said latch and rock shaft operable to effect amovement of the latch to its unlocking position, and a yielding memberassociated with said latch tending tomove the same to its lockingposition. e

14. The'combination of a lock casing, a pivoted latch in said casing, acatch co-acting with said latch, a rock shaft extending transverselythrough said casing pivotally to-support said latch, a removable memberoperably connecting said latch to said rock shaft, bearings for saidrock shaft and openings in said lock casing to receive said bearlIl 15.The combination of a lock casing, a

latch in said casing, a rock shaft pivotally supported in said casingand carrying said latch, and a removable member operably connecting saidlatch and rock shaft.

16. The combination of a lock casing, a latch,in said casing, a rockshaft transversely disposed with respect to said lock casing andcarrying said latch bearings therefor, both sides of said lock casinghaving openings to receive said bearings.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses.

WlllLLlAllf 1D. lilUTE.

